# -*- coding: utf-8 -*-
"""
Created on Tue Sep  5 20:05:40 2017

@author: Administrator
"""

import numpy as np
import matplotlib.pyplot as plt

#np.random.seed(100)

data=np.random.normal(size=(1000,4),loc=0,scale=1)

labels=['A','B','C','D']

plt.boxplot(data,labels=labels)

plt.show()